Fixes in template parameters + remove budget elements when removing event

src/Bundle/ChillEventBundle/Controller/EventController.php

@@ -78,6 +78,7 @@ final class EventController extends AbstractController
 
         /** @var array $participations */
         $participations = $event->getParticipations();
+        $budgetElements = $event->getBudgetElements();
 
         $form = $this->createDeleteForm($event_id);
 
@@ -89,6 +90,10 @@ final class EventController extends AbstractController
                     $em->remove($participation);
                 }
 
+                foreach ($budgetElements as $e) {
+                    $em->remove($e);
+                }
+
                 $em->remove($event);
                 $em->flush();